1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
antiseptic1488 [7]
3 years ago
14

BRAINLIEST

Chemistry
2 answers:
pogonyaev3 years ago
6 0

Answer:

1st opt.

(copper is the only material consisting of a single pure substance)

Explanation:

an element is made up of only one type of atom, and copper (Cu) as you can see is a single pure atom whereas salt (NaCl) and vinegar (C2H4O2) are both made of different elements.

Hope this helps

lesantik [10]3 years ago
5 0

Answer:

copper is the only material composed of a single pure substance

Explanation:

plss mark brainliest

You might be interested in
A molecule has three bonded atoms around the central atom. The central atom does not have any lone pairs. What is the geometry o
adelina 88 [10]

Answer:

trigonal planar

Explanation:

Tri=three, three-dimensional arrangement of the atoms that constitute a molecule.

5 0
3 years ago
The pictures below show water in a glass and oil in a beaker.
Archy [21]

Answer: is letter D. Because minerals are solid.

Explanation:

3 0
4 years ago
Read 2 more answers
Water can be made using the reversible reaction shown. Which change would
Ghella [55]

Decreasing the temperature in the reaction vessel keep this reaction from shifting to form more of the product.

As we know that rate of reaction is directly proportional to the concentration of the reactant.

If we increase the concentration of H2 then the rate of reaction increases. So, we keep it constant. Therefore this option is wrong.

By removing the H₂O from the reaction vessel as it almost make no change in the reaction. This can be pursuited the reaction in which product again converted into product.

By increasing the temperature we increases the rate of reaction and equilibrium shift in the forward direction.

Thus, we concluded that by decreasing the temperature in the reaction vessel keep this reaction from shifting to form more of the product.

learn more about rate of reaction:

brainly.com/question/8592296

#SPJ13

5 0
1 year ago
If you are 2 meters tall, how many millimeters tall are you?
nirvana33 [79]

Answer:

2000 millimeters

Explanation:

3 0
3 years ago
What is the velocity of a plane traveling west if it flies 1575 km in 2.75 hours
dalvyx [7]

Answer:

572.72kmh (after decimal is repeating)

Explanation:

1575/2.75

8 0
3 years ago
Other questions:
  • Empirical formula of a compound if a 50.0 g sample of it contains 9.1g Na ,20.6 g Cr ,and 22.2 g O
    7·1 answer
  • Calculate the cell potential at 25oC under the following nonstandard conditions: 2MnO4-(aq) + 3Cu(s) + 8H+(aq) ⟶ 2MnO2(s) + 3Cu2
    5·1 answer
  • What is the difference between a group and a period
    5·2 answers
  • Which landform is created by a moving glacier?
    8·1 answer
  • A water sample tested positive for lead with a concentration of 35 ppm. The density of the solution is 1.00 g/mL Which of the fo
    13·1 answer
  • Which temperature scale would read the highest number for boiling water? A. Kelvin B. Celsius C. Fahrenheit
    6·2 answers
  • What is the difference between synthesis, decomposition and combustion?
    9·1 answer
  • Kinetic or potential energy.
    7·2 answers
  • PLEASE ANSWER I WILL GIVE YOU BRAINIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    5·2 answers
  • 147,320 g has significant figures
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!